Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
I assert that this
Grammar usage guide and real-world examplesUSAGE SUMMARY
"I assert that this" is correct and usable in written English.
You can use it to make a declaration or statement of a claim or belief. For example: "I assert that this new policy will make a positive change to our organization."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(16)
I maintain that this
I contend that this
I believe that this
I argue that this
I submit that this
I suggest that this
I confirm that this
I recognize that this
I agree that this
I feel that this
I imagine that this
I guess that this
I accept that this
I suspect that this
I disagree that this
I acknowledge that this
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
4 human-written examples
The transferee grasped the object being transferred and said, "I assert that this thing is mine by Quiritarian [Roman] law; and let it have been bought by me with this piece of copper and these copper scales".
Encyclopedias
I assert that this is wrong.
News & Media
I assert that this is more important than appears at first sight.
News & Media
I assert that this is a misnomer to be flipped on its head.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
I asserted that this is not an issue to which one simply agrees or disagrees.
News & Media
I assert that I believe she's used this moment in order to push away from me because she was unsatisfied with something else in the relationship, and this was just the catalyst she needed for truly assessing her relationship with me, and what she was able to offer emotionally.
News & Media
'I assert that George is the culprit,' is a performative sentence by this test.
Science
But I assert that he never stopped smiling.
News & Media
As a student at Brown, I can assert that this is not true.
News & Media
I then assert that this patchwork is not currently doing enough to protect people from being human trafficked, and give my own policy proposal for how to solve this issue.
Academia
Holding Muhammed's mother's hand for a brief moment, I tried to assert that this act was not done on our behalf and that we were speechless in light of such cruelty.
News & Media
Expert writing Tips
Best practice
Use "I assert that this" when you want to make a formal, direct statement of your belief or position. Ensure your assertion is supported by evidence or reasoning to enhance credibility.
Common error
Avoid using "I assert that this" too frequently, especially in informal contexts. Overuse can make your writing sound overly formal or pretentious. Opt for simpler alternatives like "I believe" or "I think" in less formal settings.
Source & Trust
89%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I assert that this" functions as a performative utterance, explicitly stating the speaker's conviction or declaration. As Ludwig AI confirms, it is usable in written English to make a claim or belief. The examples show it used in contexts requiring a clear statement of position.
Frequent in
News & Media
40%
Science
40%
Academia
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "I assert that this" is a grammatically correct phrase used to express a firm belief or declaration. As Ludwig AI reports, it functions to state a claim or belief. While correct, its usage is relatively rare and leans towards formal contexts such as news media, scientific papers, and academic writing. Alternatives like "I maintain that this" or "I believe that this" might be more appropriate in less formal settings. When using this phrase, ensure you have supporting evidence or reasoning to strengthen your assertion.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I maintain that this
Emphasizes a consistent and firm belief.
I contend that this
Suggests an argument or debate in support of a claim.
I argue that this
Highlights the reasoning and evidence behind a statement.
I submit that this
Offers a formal suggestion or proposal for consideration.
I propose that this
Introduces a formal recommendation or plan.
I posit that this
Presents a formal assumption or hypothesis.
I affirm that this
Highlights the positive and confident nature of the declaration.
I declare that this
Emphasizes the official or formal nature of the statement.
It is my assertion that this
Transforms the statement into an impersonal declaration.
My position is that this
Focuses on personal standpoint or belief.
FAQs
How to use "I assert that this" in a sentence?
Use "I assert that this" to state a belief or fact confidently, often when presenting an argument or defending a position. For example, "I assert that this evidence proves the defendant's innocence."
What can I say instead of "I assert that this"?
You can use alternatives like "I maintain that this", "I contend that this", or "I believe that this" depending on the context.
When is it appropriate to use "I assert that this" in writing?
It's suitable for formal writing, academic papers, or legal documents where a direct and confident statement is necessary. Avoid using it in casual conversation.
What's the difference between "I assert that this" and "I believe that this"?
"I assert that this" implies a stronger conviction and a readiness to defend the statement, while "I believe that this" expresses a personal opinion that may not be as firmly defended.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.4/5
Expert rating
Real-world application tested